The present invention relates to a microorganism Lactobacillus plantarum strain Inducia DSM 21379 as probiotic, its functional properties, food product (e.g. cheese) and composition comprising said microorganism and use of said microorganism for production of medicine for enhancing cellular immunity. L. plantarum Inducia produces polyamines from ornithine and glutamate, nitric mono-oxide (NO) from arginine, possesses antioxidative activity and with produced polyamines, nitric mono-oxide and antioxidative compounds improves the intestinal barrier function, increases number of immunocytes in blood and induces cytokine production for enhancement of organisms' natural defense.
